JPH0521494Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a structure for attaching an inner case of an audio device to a dart board.

<Prior Art> In-vehicle audio devices such as car stereos and CD players have become increasingly high quality and sophisticated in recent years. As a result, the number of cases of theft is increasing.

As a measure to protect the audio equipment itself from theft, a proposal was made in which the audio equipment could be attached to and removed from an inner case attached to the dart board, and the audio equipment could be attached to and removed from the inner case when the passenger left the vehicle. has been done.

<Problems with the prior art> However, with the above-mentioned attachment/detachment method, it is not possible to completely protect the inner case from theft unless the attachment strength of the inner case to the dash board is increased, and the thickness of the dash board varies depending on the type of vehicle. This has had various problems, such as the difficulty of creating a mounting structure that is compatible with all types of vehicles.

<Means for solving the problem> The present invention was devised to solve the above problem.Insertion holes are formed on the upper and lower surfaces of the inner case, and the inner case is arranged in the insertion holes. By moving the pressing piece, the periphery of the opening of the dart board is clamped between the flange of the inner case and the pressing piece.

<Function> When the fitting piece formed integrally with the pressing piece is press-fitted into the recessed part of the pressing piece, the elastic toothing piece bulges out and meshes with the serrated edge of the insertion hole, resulting in a large clamping force. Pinching is possible.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The inner case mounting structure of the present invention for an in-vehicle audio device will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an inner case 1 that is attached to an opening in a panel inside a vehicle, a so-called dash board.

The inner case 1 has a front opening 1 made of a thin steel plate, etc.
It is formed into a box shape with 1. At the periphery of the front opening 11, flanges 12, 12, . Further, a pair of insertion holes 2, 2 are formed in the upper surface 13 and lower surface 14 of the inner case 1, respectively. The insertion hole 2 consists of an insertion portion 21 and a moving groove 22, and the movement groove 22 is formed so as to gradually approach the flange 12 as it moves away from the insertion portion 21. Also, each movement groove 22, 2
Serrated edges 22a, 22b are formed on both side edges of 2..., respectively. A total of four pressing pieces 3, 3, . . . are arranged in the insertion holes 2, 2, . Pressing piece 3
As shown in the bottom perspective view of FIG.
31... forms a substantially hexagonal plate shape, and a pair of elastic toothing pieces 33, 33 are formed on the bottom surface 32.

Serrated side surfaces 33a, 33b having substantially the same shape and pitch as the serrated edges 22a, 22b are formed on the outer surfaces of the elastic toothed pieces 33, 33. Further, a recess 34 is formed between the elastic toothing pieces 33 and 33.

On the other hand, a fitting piece 4 is integrally formed at one end of both the elastic toothing pieces 33, 33. This fitting piece 4
consists of a press-fitting part 41 that is press-fitted into the recess 34 and a bending part 42 that is continuous with the elastic toothing pieces 33 and 33 and is highly flexible. Normally, the pressing piece 3 is molded from a synthetic resin material, so the bent portion 42 has an elastic toothing piece 33,
The continuous portion between 33 and the press-fitting portion 41 is formed into a thin wall shape or a V-groove shape. Further, the bottom surface 32 and the elastic toothing pieces 33, 33 are in a state of so-called edge cutting. Therefore, when the fitting piece 4 is press-fitted into the recess 34, the side surface of the recess 34 is pressed against the side of the press-fitting part 41, and the elastic toothing pieces 33, 33 can bulge outward.

Next, the case where the inner case 1 is attached to the dash board will be explained.

A pair of pressing pieces 3, 3... are arranged on the upper surface 13 and lower surface 14 of the inner case 1, respectively, and since these pressing pieces 3, 3... have the same function and structure, the following explanation will be made. In the description, only the pressing piece 3 provided on the upper surface 12 will be explained, and the description of the other pressing pieces 3 will be omitted.

FIG. 3 is a partially omitted side view showing a state in which the pressing piece 3 is moved into the moving groove 22 of the insertion hole 2. That is, with the bottom surface 32 of the pressing piece 3 facing downward, hold the press-fitting part 41 of the fitting piece 4, fit it into the insertion part 21 from the front opening 11 of the inner case 1, and insert it into the moving groove 22.
bring it into. However, the serrations 22a, 22b formed in the moving groove 22 and the serrations 33a, 33b of the elastic toothing pieces 33, 33 are in contact with each other, but do not mesh with each other. If the press-fitting portion 41 of the fitting piece 4 is further pulled in the direction of the solid line arrow, the pressing piece 3 advances in the direction of the dotted chain arrow, and the side surface 31 of the pressing piece 3 comes into contact with the inner surface of the dash board. In this state, rotate the press-fitting part 41 of the fitting piece 4 in the direction of the dotted arrow, and press the fourth
Press fit into the recess 34 as shown in the figure. Then the sixth
As shown in the back view of the figure, the elastic toothing pieces 33, 33 bulge outward, and the serrated side surfaces 33a, 33b mesh with the serrated edges 22a, 22b of the fitting hole 2, respectively. Due to this meshing, the pressing piece 3 does not move backward, and as shown in the schematic side cross-sectional view of FIG. 7, the flange 12
and the side surface 31 of the pressing piece 3.
is compressed. That is, the inner case 1 is clamped to the periphery of the opening of the dash board 5.

On the other hand, in order to remove the inner case 1 from the dash board 5, the press-fit portion 41 of the fitting piece 4 may be removed from the recess 34 through the front opening 11 by hand or with a special jig. That is, when the press-fitting part 41 is removed from the recess 34, the meshing state between the serrated edge 22a and the serrated side surface 33a and the serrated edge 22b and the serrated side surface 33b is released, and the clamping state by the pressing piece 3 is released. .
Next, the pressing piece 3 is removed from the insertion hole 2.

Since the removed pressing piece 3 integrally forms the fitting piece 4, the mounting operation can be performed via the fitting piece 4 in the same manner as described above at the time of the next installation.

<Effects of the Invention> As described above, the inner case mounting structure of the in-vehicle audio equipment of the present invention can be reliably and firmly attached to the dash board using the pressing pieces provided on the upper and lower surfaces of the inner case. Furthermore, since the serrated side surface and the serrated edge are brought into mesh with each other by the fitting piece integrally formed with the pressing piece, the installation and removal operations are extremely simple, and the device is extremely effective as a theft prevention measure. Moreover, it has a highly versatile mounting structure that can accommodate the thickness of the dash board of various vehicle models.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the inner case, Figure 2 is a perspective view showing the inner case;
The figure is a perspective view of the bottom side of the pressing piece, FIG. 3 is a schematic side view illustrating the moving state of the pressing piece, FIG. 4 is a side view showing the state in which the fitting piece is fitted, and FIG.
The back view and FIG. 6 are side cross-sectional schematic diagrams showing the state in which the dash board is attached. 1... Inner case, 2... Insertion hole, 21...
...insertion part, 22...movement groove, 22a, 22b...
Serrated edge, 3... Pressing piece, 31... Side, 32...
...Bottom surface, 33...Elastic toothing pieces, 33a, 33b...
... Serrated side surface, 34 ... Recess, 4 ... Fitting piece, 4
1...Press-fitting part, 42...Bending part, 5...Dutch board.

Claims (1)

[Scope of utility model registration request] Insertion holes are formed in the upper and lower surfaces of the inner case, and a pressing piece disposed in the insertion hole is moved within the insertion hole, and a pair of elastic toothing pieces provided at the lower part of the pressing piece are connected to the The periphery of the opening of the dart board is clamped between the pressing piece and the flange of the inner case by meshing with the serrated edges formed in the movement groove of the insertion hole, and the opening periphery of the dart board is clamped between the pressing piece and the flange of the inner case, and A fitting piece integrally formed with the pressing piece is press-fitted into the provided recess, thereby causing the elastic toothing piece to bulge outward and mesh with the serrated edge of the insertion hole. Inner case mounting structure for automotive audio equipment.